Electrostatic cleaning system for removal of sand from solar panels

Hiroyuki Kawamoto*, Takuya Shibata

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    107 Citations (Scopus)


    An improved cleaning system has been developed that uses electrostatic force to remove sand from the surface of solar panels. A single-phase high voltage is applied to parallel wire electrodes embedded in the cover glass plate of a solar panel. It has been demonstrated that more than 90% of the adhering sand is repelled from the surface of the slightly inclined panel after the cleaning operation. The performance of the system was further improved by improving the electrode configuration and introducing natural wind on the surface of the panel, even when the deposition of sand on the panel is extremely high. The power consumption of this system is virtually zero. This technology is expected to increase the effective efficiency of mega solar power plants constructed in deserts at low latitudes.

    Original languageEnglish
    Pages (from-to)65-70
    Number of pages6
    JournalJournal of Electrostatics
    Publication statusPublished - 2015 Feb 1


    • Cleaner
    • Electrostatic force
    • Mega solar
    • Sand
    • Solar panel

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Electronic, Optical and Magnetic Materials
    • Surfaces, Coatings and Films
    • Condensed Matter Physics
    • Biotechnology


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